Frequently Asked Questions
Find answers to the most common questions about QR Rapido
General Questions
Static QR codes (like the ones generated for free) never expire. They will work forever, even if our site goes offline.
Dynamic QR codes (premium) can be deactivated or modified through the control panel.
The ideal size depends on the reading distance:
- 0.8" x 0.8" to 1.2" x 1.2" Business cards, small labels (close reading)
- 2" x 2" to 3" x 3" Flyers, menus, promotional materials
- 6" x 6" or larger Posters, billboards, distance reading
Test with different devices and applications:
Android:
- Android: Native camera (Android 8+)
- Android: Google Lens
- Android: Specific apps (QR Code Reader, etc.)
iOS:
- iOS: Native camera (iOS 11+)
- iOS: Control Center > QR Reader
- iOS: App Store apps
QR codes themselves are safe, but the content they lead to may not be.
Always verify the destination before clicking links or entering personal information.
Security tips:
- Prefer readers that show the destination before opening
- Be suspicious of QR codes in suspicious locations
- Never enter passwords or personal data through suspicious QR codes
Technical Questions
All QR codes generated by QR Rapido are static and permanent. This means the content is encoded directly into the QR code and cannot be changed after generation. This approach ensures maximum privacy, as we do not track scans, and works offline without depending on external servers.
Yes! We offer free and premium customization options:
Free Customization:
- Custom colors (foreground and background)
- Various sizes (200px to 800px)
- Adjustable margins
Premium Customization:
- Custom logos and icons in the center
- Advanced corner styles (rounded, circular, leaf)
- Professional pre-defined themes
It depends on the type of content:
Works Offline:
- Plain text
- Contacts/vCard (saves to device)
- WiFi settings
Needs Internet:
- URLs/Links
- Dynamic QR codes
- Content that requires online access
Usage Questions
Color choice directly affects readability:
Recommended Combinations:
- Black on white (maximum contrast)
- Dark blue on white
- Dark colors on light backgrounds
Avoid:
- Very similar colors (low contrast)
- Yellow on white
- Very vibrant colors that cause eye strain
Anonymous Users:
Registered Users:
Premium
Premium Questions
The Premium plan offers advanced features for professional users:
Performance Benefits:
- Priority ultra-fast generation (0.4s average)
- Unlimited QR codes per day
- No ads for maximum productivity
Exclusive Features:
- Dynamic QR codes with analytics
- Custom logos and advanced styles
- Developer API and priority support